How To Differentiate Telephone And Pcs Ind Different Plan

I our organization we have ip phones and pcs, as of now all working on same plan.

I want to differentiate these phones in one plan and pcs in another plan, our complete servers and Desktop everything in Vmaware vshpere. Using distributed switch, currently we have totally some 10 plans, for different purposes, all plans working fine. To move phone to different plans am using mac authentication in windows 2008, but the pcs also moving to the particular plan. Does anyone having idea about it?